CN104330980A - RT-LAB based microgrid simulation testing system - Google Patents

RT-LAB based microgrid simulation testing system Download PDF

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CN104330980A
CN104330980A CN201410609131.XA CN201410609131A CN104330980A CN 104330980 A CN104330980 A CN 104330980A CN 201410609131 A CN201410609131 A CN 201410609131A CN 104330980 A CN104330980 A CN 104330980A
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micro
capacitance sensor
lab
physical
simulation
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CN201410609131.XA
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CN104330980B (en
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黄磊
舒杰
张继元
崔琼
姜桂秀
吴志锋
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中国科学院广州能源研究所
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Abstract

The invention discloses an RT-LAB based microgrid simulation testing system. The system comprises an RT-LAB simulation system, a DSP physical system, a power amplifier, a microgrid physical simulation system and a microgrid monitoring system; the RT-LAB simulation system is used for building microgrid and distribution network simulation models and providing a real-time simulation environment; the DSP physical system is used for producing a control signal to a converter circuit built in the simulation system; the power amplifier is used for connecting the RT-LAB simulation system and the microgrid physical simulation system; the microgrid physical imitating system is used for forming a digital physical microgrid with the RT-LAB simulation system and accepting the monitoring and dispatching control of the monitoring system; the microgrid monitoring system is used for monitoring the DSP physical system, a microgrid digital simulating model and the physical simulation system. According to the system, the microgrid and distribution network simulating models are built on the RT-LAB, the microgrid physical simulation system is provided, so as to truly simulate the running states of a power system and the microgrid; the system has the advantages of real-time simulating, online parameter adjusting, and being rich in interfaces, rich in testing type, flexible to switch the testing mode, simple to operate, safe and reliable, efficient and economical.

Description

A kind of micro-capacitance sensor emulation test system based on RT-LAB
Technical field
The present invention relates to micro-capacitance sensor technical field, particularly relate to a kind of micro-capacitance sensor emulation test system based on RT-LAB.
Background technology
Micro-capacitance sensor technology is according to local resources condition, choose reasonable comprehensive utilization multiple renewable energy sources (sun power, wind energy, ocean energy, biomass energy, standby diesel engine etc.), composition distribution type renewable energy power supply system, realizing independent operating or be incorporated into the power networks, is the Main way of regenerative resource efficiency utilization from now on.Micro-capacitance sensor technology can improve the distribution type renewable energy access ratio of electric system and power supply reliability, and provides electric power supply for the power-shortage area such as island and rural area, has important economy and environment benefit.At present, development micro-capacitance sensor technology is all being widelyd popularize in countries in the world, and micro-capacitance sensor is just from the Demonstration stage to commercial applications stage conversion.
Traditional micro-capacitance sensor emulation test method comprises physical simulating method and pure digi-tal emulation mode.Physical simulating method is by building micro-capacitance sensor physical system; pure physical testing is carried out to the technology such as equipment development, planning and design, traffic control, Control protection of micro-capacitance sensor, this method has that cost of equipment is high, the construction period is long, place restriction large, grid-connected test restriction greatly, the problem such as high, the extensibility of cost of development and poor compatibility.And the simulation of pure digi-tal emulation mode to micro-capacitance sensor real system is difficult to accomplish real-time simulation, and often can not real simulation micro-capacitance sensor practical operation situation, make troubles to micro-capacitance sensor equipment and system development.
Therefore, for solving traditional micro-capacitance sensor emulation test method Problems existing in actual applications, the efficiency of the design of raising micro-grid system, equipment development, artificial debugging and economy, need badly and adopt advanced emulation test method.In recent years, about the correlative study of the emulation test system of micro-capacitance sensor, the test platform of existing practicality, but up to the present, not yet have the integrated digital physical mixed emulation test system being applicable to micro-capacitance sensor (group) complication system level half crosslinking assays in kind.Therefore, be necessary to set up and a set ofly can take into account physical simulation and Digital Simulation advantage, cost of investment is low, the construction period is short, it is flexible, simple to operate to expand, test-types enriches, practical micro-capacitance sensor integrated digital physical mixed emulation test system.
Summary of the invention
The object of the present invention is to provide a kind of micro-capacitance sensor based on RT-LAB numeral physical mixed emulation test system, it has the advantages such as simple to operate, expansion is flexible, test-types is abundant, applicability is strong, micro-capacitance sensor (group) complication system level half crosslinked emulation testing in kind can be realized, and can effectively and neatly carry out micro-capacitance sensor from net and to be incorporated into the power networks test, the efficiency of micro-capacitance sensor and the test of convertor equipment development experiments can be improved, reduce research and development cost.
In order to realize foregoing invention object, the present invention adopts following technical scheme.
Based on a micro-capacitance sensor emulation test system of RT-LAB, it comprises RT-LAB analogue system, DSP physical system, power amplifier, micro-capacitance sensor physical simulation system, micro-capacitance sensor supervisory system, wherein:
RT-LAB analogue system, for building micro-capacitance sensor and power distribution network realistic model, real-time simulation environment is provided, and RT-LAB analogue system and DSP physical system, micro-capacitance sensor physical simulation system, the swapping data of micro-capacitance sensor supervisory system and the interface arrangement of signal are provided;
DSP physical system, for receiving the analog data of RT-LAB analogue system input, and produce discrete control signal by this analog data, to control the two way convertor main circuit built in RT-LAB analogue system, realize the exploitation of micro-capacitance sensor converter plant control circuit;
Power amplifier, for setting up the power distribution channel of RT-LAB analogue system and micro-capacitance sensor physical simulation system, ensures that real-time target machine works in the environment of low-voltage, electric current, to ensure that RT-LAB analogue system real-time working is in the environment of low-voltage, electric current;
Micro-capacitance sensor physical simulation system, for forming digital physics micro-grid system with RT-LAB analogue system, and accepts monitoring and the scheduling controlling of micro-capacitance sensor supervisory system;
Micro-capacitance sensor supervisory system, for realizing micro-capacitance sensor safety, stable, economical operation and energy management; Described micro-capacitance sensor supervisory system is connected with micro-capacitance sensor physical simulation system, to monitor the parameter of micro-capacitance sensor physical simulation system actual motion and to control the parameter of this actual motion; Described micro-capacitance sensor supervisory system is also connected with DSP physical system, to monitor the operational factor of two way convertor and to issue control signal to DSP physical system; Described micro-capacitance sensor supervisory system is also connected with RT-LAB analogue system, controls with the operational factor of realistic model in on-line monitoring RT-LAB analogue system to RT-LAB analogue system.
Described RT-LAB analogue system comprises emulating host computer, digital quantity/analog input and output board and real-time target machine.Described emulating host computer is used for building micro-capacitance sensor cell level and system-level model based on MATLAB/simulink simulation software, comprises the model of the composition micro-capacitance sensor such as distributed power source (photovoltaic, wind-powered electricity generation, hydropower, fuel cell, fuel oil/mechanism of qi etc.), energy storage device (accumulator, super capacitor, flywheel energy storage, water-storage etc.), energy converter (two way convertor, photovoltaic DC-to-AC converter etc.) and control algolithm, each type load, cable line.Emulating host computer is connected with real-time target machine by communication interface, and real-time target machine carries out compiling from emulating host computer download model and real time implementation runs.To be real-time target machine with RT-LAB analogue system be connected with external system input and output board and exchange the interface of data and signal.
Described DSP physical system comprises two way convertor controller and photovoltaic DC-to-AC converter controller.The controller of two way convertor comprises the two way convertor that independent sum is incorporated into the power networks under pattern and controls, controller receives electrical network and the battery tension current signal of RT-LAB analogue system, SVPWM pulse control signal is exported, the switching device of two way convertor main circuit in control RT-LAB analogue system after modulation.Independent operation mode comprises voltage effective value and controls and instantaneous voltage Waveform Control two parts composition, and voltage effective value controls to be made up of PI controller, and instantaneous voltage is made up of voltage feedforward control and electric current and voltage instantaneous value double-loop control two parts.The pattern of being incorporated into the power networks comprises active power controller and Reactive Power Control, all adopts PI controller, can realize non differential regulation.
Photovoltaic DC-to-AC converter controller comprises MPPT controller and SVPWM controller, control booster circuit and inverter circuit respectively, MPPT controller receives DC voltage and the current signal of the photovoltaic system of RT-LAB analogue system, booster circuit control signal is exported after modulation, SVPWM inverter controller receives grid-connected point voltage, after modulation, export inverter circuit SVPWM pulse control signal.
Described power amplifier is made up of physical units such as four-quadrant power conversion unit, mutual inductors, can generate and absorb three-phase and single-phase power, ensures that real-time target machine works in the environment of low-voltage, electric current.Described micro-capacitance sensor physical simulation system, for exchanging micro-grid system, comprises photovoltaic electrification component, wind power generating set, energy storage battery, diesel-driven generator, controllable burden, photovoltaic DC-to-AC converter, two way convertor and cable line etc.
Described micro-capacitance sensor supervisory system is made up of monitoring host computer, telemechanical communicator, data acquisition and control device etc., adopt fieldbus or Industrial Ethernet real-time performance interconnected.Equipment in monitoring host computer and micro-capacitance sensor adopts fieldbus direct connection establishment bus-type communication network, and each monitoring element is directly connected to fieldbus networks by serial communication card.Micro-capacitance sensor supervisory system is connected by the digital simulation model of interface arrangement with RT-LAB analogue system, and is connected with micro-capacitance sensor physical simulation system and DSP physical system, exchanges data and control signal.Further, described micro grid control system adopts hierarchical control scheme, this hierarchical control scheme comprises three levels: (1) field apparatus key-course, by adopting power limitation control (PQ control), constant voltage/constant frequency to control the control methods such as (V/f control), droop control (Droop control), equity control and master & slave control, realize the stability contorting of system; (2) micro-capacitance sensor central control layer, the power division realized in micro-capacitance sensor controls, electric voltage frequency secondary adjusts and pattern switches; (3) grid key-course, realizes the power flowcontrol between the energy hole in micro-capacitance sensor, micro-capacitance sensor group and the power flowcontrol between micro-capacitance sensor and electric system.
The digital physical mixed emulation testing type that the present invention can carry out comprises the development and testing of micro-capacitance sensor control device and micro-grid system emulation testing.Wherein, the development and testing of micro-capacitance sensor control device comprises two way convertor controller containing DSP and micro-capacitance sensor three layers of control system's development; Micro-grid system emulation testing comprises the assessment test that micro-capacitance sensor networking detection (quality of power supply and emergency protection controlling functions detect), micro-capacitance sensor group energy collaborated control simulation and newly-increased device affect physics micro-capacitance sensor.
Compared with prior art, the present invention has the following advantages:
1. the present invention is based upon on RT-LAB semi-matter simulating system, can realize micro-grid connection and from the digital physics real-time simulation test of network operation and on-line tuning parameter.There is abundant analog quantity and digital quantity input/output interface, the numerous component equipment access of micro-capacitance sensor and many level two way convertor development requirement can be adapted to, and can according to testing requirements flexible expansion interface.
2. the present invention can realize micro-capacitance sensor hardware in loop and power hardware flexibly in ring test.The test of power hardware assemblage on-orbit is the emulation testing means between hardware-in-loop simulation and real system test, can carry out assessment test more accurately relative to hardware-in-loop simulation to real system.The present invention can correctly test and assess the interaction of various parts in micro-capacitance sensor, micro-capacitance sensor group, micro-capacitance sensor and power distribution network effectively, can carry out micro grid control system and the development and testing of two way convertor control circuit.The present invention can switch flexibly between different test mode, adapts to the exploitation object that micro-capacitance sensor is different, substantially increases system and research and development of products efficiency.
3. the present invention can carry out the power hardware of micro-capacitance sensor and power distribution network accurately and effectively in ring test, and electrical network configuration setting flexibly.Experimentally need the peak power output with power amplifier, can set up actual is the power hardware assemblage on-orbit model of 1:1 with realistic model ratio, or the power hardware assemblage on-orbit model scaled for real system rear foundation reduced.Can carry out comprising the microgrid power hardware-in-the-loop test under the electric network fault conditions such as voltage fluctuation, frequency jitter, symmetrical short-circuit, unsymmetrical short-circuit, Voltage Drop, broken string; effectively to verify advanced person's protection and the control strategy of micro-capacitance sensor physical simulation system; before the real system of construction, find out hidden trouble of equipment to greatest extent, and test process do not possess any risk.In addition, the quality of power supply that analogue system can also access electric system to micro-capacitance sensor is carried out power hardware and is estimated in environmental impact assessment, for micro-capacitance sensor or distributed power source access electric system provide access foundation.
4. the present invention can realize the hardware in loop of two way convertor control circuit and power hardware is tested at ring combined classification.Two way convertor main circuit is based upon on RT-LAB, control circuit is built on DSP, hardware-in―the-loop test carries out emulation testing by means of only RT-LAB system and DSP physical system, and physical simulation system to be connected with RT-LAB in ring test to test by increasing power amplifier by power hardware.At power hardware in ring test, exchanged by real power, can the validity of access control circuit and accuracy more accurately.The present invention greatly can reduce testing cost and raise the efficiency, and can obtain reliable test result.In addition, DSP physical system and primary circuit, are demarcated clear for boundary with the input and output board of real-time target machine, are convenient to this DSP physical system to two way convertor directly transplanting.
5. the micro-capacitance sensor supervisory system in the present invention in micro-capacitance sensor physical simulation system is connected with RT-LAB, DSP physical system and micro-capacitance sensor physical simulation system simultaneously, exchange data and control signal online by the digital simulation model in RT-LAB interface arrangement and emulating host computer, being connected with micro-capacitance sensor physical simulation system by fieldbus or Industrial Ethernet network and DSP physical system exchanges data and control signal.Thus make RT-LAB and micro-capacitance sensor physical simulation system form a closed loop test system, realize the power assemblage on-orbit test of micro-capacitance sensor three layers of control system.In addition, micro-capacitance sensor supervisory system and micro-capacitance sensor realistic model are with the input and output board of real-time target machine for boundary, and interphase is clear, are convenient to this micro-capacitance sensor supervisory system and transplant to actual micro-capacitance sensor.
Accompanying drawing explanation
Fig. 1 is the micro-capacitance sensor numeral physical simulation test macro based on RT-LAB;
Fig. 2 is DSP hardware-in-the-loop test wiring diagram;
Fig. 3 is the DSP power hardware assemblage on-orbit test wiring diagram that single two way convertor runs;
Fig. 4 is that the DSP power hardware of current transformer physical model and digital simulation model hybrid simulation is at ring test wiring diagram;
Fig. 5 is micro-capacitance sensor three layers of control system hardware-in-the-loop test wiring diagram;
Fig. 6 is micro-capacitance sensor three layers of control system power hardware assemblage on-orbit test wiring diagram.
Embodiment
In order to understand the present invention better, below in conjunction with accompanying drawing, the invention will be further described, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, a kind of micro-capacitance sensor emulation test system based on RT-LAB of the present invention, comprising: RT-LAB analogue system, DSP physical system, power amplifier, micro-capacitance sensor physical simulation system and micro-capacitance sensor supervisory system.Wherein, DSP physical system is connected with RT-LAB emulation test system by interface arrangement with micro-capacitance sensor supervisory system, micro-capacitance sensor supervisory system is also connected with DSP physical system, micro-capacitance sensor physical simulation system by fieldbus simultaneously, and micro-capacitance sensor physical simulation system is connected with RT-LAB emulation test system with interface arrangement by power amplifier.
Further data of the present invention, signal and power flow direction are described below.The data such as electric current and voltage (analog quantity) are sent to DSP physical system by interface arrangement by RT-LAB analogue system, and DSP physical system returns SVPWM pulse control signal (digital quantity) to RT-LAB analogue system; RT-LAB analogue system exchanges the data (analog quantity) such as electric current and voltage by interface arrangement and power amplifier, power amplifier exchanges real power with micro-capacitance sensor physical simulation system after the analog quantity received from RT-LAB analogue system is carried out power amplification; Micro-capacitance sensor supervisory system is by the parameter of communication bus and Sensor monitoring micro-capacitance sensor physical simulation system actual motion and control it, field apparatus realizes automatically controlling according to the voltage detected, electric current and frequency etc., micro-capacitance sensor central control layer to micro-capacitance sensor physical simulation system monitoring situation, issues control signal to field apparatus according to micro-capacitance sensor supervisory system; Micro-capacitance sensor supervisory system is connected with DSP physical system by communication bus, monitors the operational factor of two way convertor and issues control signal to DSP physical system; Micro-capacitance sensor supervisory system is connected with RT-LAB analogue system by interface arrangement, in on-line monitoring RT-LAB analogue system realistic model the parameter such as voltage, electric current, frequency and control signal is sent to RT-LAB analogue system, make micro-capacitance sensor supervisory system can monitor the realistic model of micro-capacitance sensor physical simulation system, DSP physical simulation system and RT-LAB analogue system simultaneously, each element in micro-capacitance sensor model is monitored, and the signal such as voltage, electric current, frequency of the also site of power distribution network digital simulation model can be followed the tracks of, thus make complete reliable control.
Described RT-LAB analogue system comprises emulating host computer, digital quantity/analog input and output board and real-time target machine.Described emulating host computer is used for building micro-capacitance sensor cell level and system-level model based on MATLAB/simulink simulation software, and electricity distribution network model.Emulating host computer is connected with real-time target machine by communication interface, after realistic model emulating host computer is downloaded to real-time target machine, carries out compiling and real time implementation operation by implementation goal machine.Input and output board is the connection interface that RT-LAB analogue system and the physical system beyond it carry out data and signal exchange.
Described emulating host computer is used for building micro-capacitance sensor cell level and system-level model based on MATLAB/simulink simulation software, and electricity distribution network model.Wherein, micro-capacitance sensor model comprises distributed power source (photovoltaic, wind-powered electricity generation, hydropower, fuel cell, fuel oil/mechanism of qi etc.), energy storage device (accumulator, super capacitor, flywheel energy storage, water-storage etc.), energy converter (two way convertor, photovoltaic DC-to-AC converter etc.) and control algolithm, each type load, cable line etc.
Described real-time target machine, adopt multi-CPU concurrent operation, the function that can realize comprises the download of MATLAB/simulink model, compiling, generating code, distribution node, real-time simulation operation, parameter on-line tuning etc. of will emulating host computer be built.In addition, real-time target machine can be realized by input and output board and communication in emulating host computer, other real-time target machines and real-time target machine between CPU.
Described input and output board, transmission channel has the feature of high-speed, high precision, and when comprising multiple analog input/output channel, multiple band, target digital quantity I/O passage and PWM export and conditioning module.Input and output board is for RT-LAB analogue system and DSP physical system, micro-capacitance sensor supervisory system, power amplifier exchange signal and data provide interface.
Described DSP physical system is the controller of important convertor equipment in micro-capacitance sensor, comprises two way convertor controller and photovoltaic DC-to-AC converter controller.The controller of two way convertor comprises the two way convertor that independent sum is incorporated into the power networks under pattern and controls, and core ensures taking over seamlessly between the quality of power supply under the grid-connected two kinds of operational modes of independent sum and two kinds of patterns.Photovoltaic DC-to-AC converter controller comprises MPPT controller and SVPWM controller, controls booster circuit and inverter circuit respectively.DSP physical system is set up by the two way convertor main circuit in input and output board and RT-LAB analogue system and is contacted, voltage and current signal and SVPWM pulse control signal is exchanged with RT-LAB analogue system in simulation process, for the development and testing of micro-capacitance sensor convertor equipment, test mode divides two-stage to test, and is respectively hardware in loop and power hardware in ring test.DSP physical system and primary circuit with the input and output board of real-time target machine for boundary, interphase is clear, after DSP physical system after debugging disconnects the connection with defeated people's output board card and micro-capacitance sensor supervisory system, the two way convertor physics main circuit identical with main circuit model in analogue system can be directly connected to, be convenient to this DSP physical system to two way convertor directly transplanting.
Described power amplifier comprises the physical units such as four-quadrant power conversion unit, mutual inductor, can generate and absorb single-phase and three phase power.For connecting RT-LAB analogue system and micro-capacitance sensor physical simulation system, ensureing that real-time target machine works in the environment of low-voltage, electric current, is realize the key equipment of power hardware in ring test.Experimentally need the peak power output with power amplifier, can set up actual is the power hardware assemblage on-orbit model of 1:1 with realistic model ratio, when the power that micro-capacitance sensor physical simulation system and RT-LAB realistic model exchange is greater than the peak power output of power amplifier, after micro-capacitance sensor physical simulation system and RT-LAB realistic model being reduced in proportion, set up the emulation testing model reduced again.
Described micro-capacitance sensor physical simulation system comprises photovoltaic electrification component, wind power generating set, energy storage battery (lead-acid accumulator, ferric phosphate lithium cell), diesel-driven generator, controllable burden, photovoltaic DC-to-AC converter, two way convertor and cable line etc., and composition exchanges micro-capacitance sensor.This system accepts the scheduling controlling of micro-capacitance sensor supervisory system and RT-LAB analogue system, for verifying scheduling controlling strategy validity.This system providing safety, stable, electric power reliably under/grid-connected normal operation, can accurately should judge and take safeguard measure under failure condition.
Described micro-capacitance sensor supervisory system comprises monitoring host computer, telemechanical communicator, data acquisition control device etc., adopt fieldbus or Industrial Ethernet real-time performance interconnected, micro-capacitance sensor supervisory system is also by input and output board, realize and the communication of RT-LAB analogue system, thus form the closed loop micro-capacitance sensor supervisory system of micro-capacitance sensor and bulk power grid or other micro-capacitance sensor.Micro-capacitance sensor supervisory system for monitoring the system voltage of micro-capacitance sensor physical simulation system and micro-capacitance sensor/power distribution network Digital Simulation System, frequency, power and each element operating mode, ensure micro-capacitance sensor (for the micro-capacitance sensor be made up of the micro-capacitance sensor model built inside micro-capacitance sensor physical system and analogue system is overall) safety, stable, reliably, economically run.In addition, because micro-capacitance sensor supervisory system adopts the communication interface of standard, and micro-capacitance sensor supervisory system and micro-capacitance sensor with the input and output board of real-time target machine for boundary, interphase is clear, after micro-capacitance sensor supervisory system disconnects the connection with micro-capacitance sensor physical simulation system, DSP physical system and input and output board after debugging, component type can be grafted directly to and be less than or equal to emulate in the actual micro-capacitance sensor of micro-capacitance sensor.
Further, described micro grid control system adopts hierarchical control scheme, this hierarchical control scheme comprises three levels: (1) field apparatus key-course, by adopting power limitation control (PQ control), constant voltage/constant frequency to control the control methods such as (V/f control), droop control (Droop control), equity control and master & slave control, realize the stability contorting of system; (2) micro-capacitance sensor central control layer, the power division realized in micro-capacitance sensor controls, electric voltage frequency secondary adjusts and pattern switches; (3) grid key-course, realizes the power flowcontrol between the energy hole in micro-capacitance sensor, micro-capacitance sensor group and the power flowcontrol between micro-capacitance sensor and electric system.Corresponding to carried micro-capacitance sensor three layers of control program, be divided into two-layer by the control of accumulator system, ground floor controls to be control voltage stabilization when dynamic disturbances, and it is zero that the second layer controls to be that adjustment energy storage exports.Use this micro-capacitance sensor three coating control method, system has higher dirigibility and extendability, therefore can integrate more micro-capacitance sensor, makes each micro-capacitance sensor connect each other and not change local hierarchy system.
Micro-grid system emulation testing comprises the assessment test that micro-capacitance sensor networking detection (quality of power supply and emergency protection controlling functions detect), micro-capacitance sensor group energy collaborated control simulation and newly-increased device affect physics micro-capacitance sensor.
As shown in Figure 1, micro-capacitance sensor networking detection system is made up of RT-LAB analogue system, micro-capacitance sensor supervisory system, micro-capacitance sensor physical simulation system and power amplifier.Electricity distribution network model is built on emulating host computer, the power distribution network that the normal and fault (comprising the electric network faults such as voltage fluctuation, frequency jitter, symmetrical short-circuit, unsymmetrical short-circuit, Voltage Drop, broken string) of simulation is run.Micro-capacitance sensor physical system for be incorporated into the power networks or grid-connected, from net two kinds of pattern switching states.RT-LAB analogue system sets up the Power Exchange path between micro-capacitance sensor physical system and power distribution network digital simulation model by power amplifier, and the micro-capacitance sensor physical system that connects is system to be studied.This system effectively can detect micro-capacitance sensor and be incorporated to the emergency protection of micro-capacitance sensor under the quality of power supply of power distribution network, grid failure state and fault traversing controls, micro-capacitance sensor is to the responding ability of power distribution network scheduling controlling.
As shown in Figure 1, micro-capacitance sensor physical system increase newly device or topology expansion assessment test macro be made up of RT-LAB analogue system, micro-capacitance sensor supervisory system, micro-capacitance sensor physical simulation system and power amplifier.This kind of testing scheme builds Blast Furnace Top Gas Recovery Turbine Unit (TRT), energy storage device, load or DC micro power grid system newly-increased on micro-capacitance sensor physical simulation system on emulating host computer, be connected by power amplifier with micro-capacitance sensor physical system by digital simulation model, the micro-capacitance sensor physical system that connects is system to be studied.Object is the newly-increased impact of element on micro-capacitance sensor service ability of assessment and the validity of control strategy.Meanwhile, this testing scheme also can carry out power to microgrid topology structure optimal design and study at ring, thus obtains safer, stable, economic microgrid topology structure.
As shown in Figure 1, micro-capacitance sensor group collaborated control simulation system is made up of RT-LAB analogue system, micro-capacitance sensor supervisory system, micro-capacitance sensor physical simulation system and power amplifier.This kind of simulating scheme builds micro-capacitance sensor and electricity distribution network model on emulating host computer.Virtual microgrid and physics micro-capacitance sensor are set up electrically and informational linkage, research micro-capacitance sensor group Power Exchange scheduling controlling scheme, realize renewable resource maximum using and improve the reliability of micro-capacitance sensor.Micro-capacitance sensor cluster first should realize power-balance between micro-capacitance sensor, when cannot balance, then accesses power distribution network to meet workload demand.
As in Figure 2-4, the test of DSP physical system is divided into two-stage to test, and is respectively hardware in loop (Fig. 2) and power hardware at ring test (Fig. 3 and 4).As shown in Figure 2, when carrying out hardware-in―the-loop test, only form test macro by RT-LAB analogue system and DSP physical system, photovoltaic DC-to-AC converter, two way convertor development and testing can be carried out.Two way convertor controller receives the electrical network of RT-LAB analogue system and battery tension current signal and power control signal, after modulation, export SVPWM pulse control signal, the control main circuit switch device of control RT-LAB analogue system.The controller of photovoltaic DC-to-AC converter comprises MPPT controller and SVPWM controller, MPPT controller receives DC voltage and the current signal of the photovoltaic system of RT-LAB analogue system, booster circuit control signal is exported after modulation, SVPWM inverter controller receives grid-connected point voltage, after modulation, export inverter circuit SVPWM pulse control signal.As shown in Figures 3 and 4, carry out power hardware when ring test, need to increase micro-capacitance sensor physical simulation system and micro-capacitance sensor supervisory system, can the Preservation tactics under the performance of two way convertor when micro-capacitance sensor normally runs and malfunction be tested.Two way convertor power hardware is as follows in ring test process: as shown in Figure 3, first single two way convertor test is carried out, the models such as power distribution network, accumulator and single two way convertor main circuit are built, the energy storage device of removing micro-capacitance sensor physical simulation system and two way convertor thereof in RT-LAB analogue system.DSP physical system receives electrical network and the battery tension current signal of RT-LAB analogue system, receives the power control signal of micro-capacitance sensor supervisory system, after modulation, export SVPWM pulse control signal, the control main circuit switch device of control RT-LAB analogue system.At micro-capacitance sensor under the different operational modes such as net, grid-connected, pattern switching, the checking of power hardware assemblage on-orbit and debugging are further carried out to the DSP physical system of debugging through hardware in loop, makes the output waveform of two way convertor reach expection requirement.Further, the model such as accumulator, multiple two way convertor main circuits is built in RT-LAB analogue system, adopt the control strategy such as master & slave control, equity control, to carrying out many two way convertors parallel running debugging from net type micro-capacitance sensor, solve the issuable circulation problem of many two way convertors parallel running.To when carrying out many two way convertors parallel running debugging from net type micro-capacitance sensor, also can adopt the connection plan of Fig. 4 further, by energy storage device and two way convertor access micro-capacitance sensor physical simulation system thereof, the primary circuit of energy storage device and two way convertor in micro-capacitance sensor is built at emulating host computer, when from network operation, carry out two way convertor physical model and the parallel running of digital simulation model many two way convertors is debugged.Photovoltaic DC-to-AC converter controller adopts Fig. 4 connection plan to carry out power hardware in ring test, MPPT controller in photovoltaic DC-to-AC converter controller receives photovoltaic system DC voltage and the current signal of RT-LAB analogue system, booster circuit control signal is exported after modulation, SVPWM inverter controller receives grid-connected point voltage, after modulation, export inverter circuit SVPWM pulse control signal.
As illustrated in Figures 5 and 6, micro-capacitance sensor three layers of control system's development are divided into two-stage to test, and are respectively hardware in loop (Fig. 5) and power hardware at ring test (Fig. 6).As shown in Figure 5, when carrying out hardware-in―the-loop test, only form test macro by RT-LAB analogue system and micro-capacitance sensor supervisory system, first Digital Simulation is carried out to three layers of control strategy, micro-capacitance sensor, power distribution network and Control System Digital Imitation model is built, the validity of access control system in the aspect of Digital Simulation in emulating host computer; Then the control strategy drawn according to Digital Simulation builds physics micro-capacitance sensor supervisory system, carries out hardware-in―the-loop test, the validity of the control strategy that checking Research of digital simulation draws.As shown in Figure 6, micro-capacitance sensor supervisory system carries out power hardware again in ring test after hardware-in―the-loop test, now need to increase micro-capacitance sensor physical simulation system, set up the Power Exchange path of emulating host computer and micro-capacitance sensor physical simulation system by interface arrangement and power amplifier.Test process is as follows: build power distribution network or micro-capacitance sensor digital simulation model according to simulation objectives at emulating host computer, micro-capacitance sensor supervisory system can be monitored power distribution network or micro-capacitance sensor digital simulation model and actual micro-grid system simultaneously, by power distribution network/micro-capacitance sensor digital simulation model and actual micro-grid system associative simulation, further the validity of three layers of control system and adaptability are verified.
The present invention, about a kind of micro-capacitance sensor emulation test system based on RT-LAB and testing scheme thereof, is particularly suitable for the emulation testing of micro-capacitance sensor technology and product and system development.Provide the hierarchical test means of the exploitation of a kind of two way convertor and the exploitation of micro-capacitance sensor hierarchy system, can cost-effectiveness requirement be met, also meet reliability requirement.Solve the limitation that micro-capacitance sensor physical testing exists in grid-connected test, make micro-capacitance sensor can carry out various test under electric network fault and assessment, also can carry out Efficient Evaluation to the quality of power supply that micro-capacitance sensor accesses bulk power grid.Also the assessment, the control of micro-capacitance sensor group coordinated scheduling etc. that affect micro-capacitance sensor physical system for micro-capacitance sensor topology design, newly-increased device provide reliable emulation testing means simultaneously.This digital physical simulation system can meet electrical network requirement of real-time, provide a kind of than hardware-in-the-loop simulation emulation testing means more accurately, be the Validity Test before micro-capacitance sensor technological development and engineering construction and evaluation measures, be applicable to research and development and engineer applied simultaneously.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.

Claims (10)

1. based on a micro-capacitance sensor emulation test system of RT-LAB, it is characterized in that, it comprises RT-LAB analogue system, DSP physical system, power amplifier, micro-capacitance sensor physical simulation system, micro-capacitance sensor supervisory system, wherein:
RT-LAB analogue system, for building micro-capacitance sensor and power distribution network realistic model, real-time simulation environment is provided, and RT-LAB analogue system and DSP physical system, micro-capacitance sensor physical simulation system, the swapping data of micro-capacitance sensor supervisory system and the interface arrangement of signal are provided;
DSP physical system, for receiving the analog data of RT-LAB analogue system input, and produce discrete control signal by this analog data, to control the two way convertor main circuit built in RT-LAB analogue system, realize the exploitation of micro-capacitance sensor converter plant control circuit;
Power amplifier, for setting up the power distribution channel of RT-LAB analogue system and micro-capacitance sensor physical simulation system, ensures that real-time target machine works in the environment of low-voltage, electric current, to ensure that RT-LAB analogue system real-time working is in the environment of low-voltage, electric current;
Micro-capacitance sensor physical simulation system, for forming digital physics micro-grid system with RT-LAB analogue system, and accepts monitoring and the scheduling controlling of micro-capacitance sensor supervisory system;
Micro-capacitance sensor supervisory system, for realizing micro-capacitance sensor safety, stable, economical operation and energy management; Described micro-capacitance sensor supervisory system is connected with micro-capacitance sensor physical simulation system, to monitor the parameter of micro-capacitance sensor physical simulation system actual motion and to control the parameter of this actual motion; Described micro-capacitance sensor supervisory system is also connected with DSP physical system, to monitor the operational factor of two way convertor and to issue control signal to DSP physical system; Described micro-capacitance sensor supervisory system is also connected with RT-LAB analogue system, controls with the operational factor of realistic model in on-line monitoring RT-LAB analogue system to RT-LAB analogue system.
2. the micro-capacitance sensor emulation test system based on RT-LAB according to claim 1, is characterized in that, described RT-LAB analogue system comprises:
Emulating host computer, for building micro-capacitance sensor and electricity distribution network model, is connected with real-time target machine by communication interface;
Real-time target machine, for compiling the micro-capacitance sensor built and power distribution network digital simulation model and real time implementation operation;
Interface arrangement, described interface arrangement is input and output board, for carrying out data with DSP physical system, power amplifier, micro-capacitance sensor physical simulation system, micro-capacitance sensor supervisory system respectively for RT-LAB analogue system and signal exchange provides interface.
3. the micro-capacitance sensor emulation test system based on RT-LAB according to claim 2, is characterized in that, described DSP physical system comprises:
Two way convertor controller, comprises independent sum and to be incorporated into the power networks pattern, for ensureing taking over seamlessly between stability under the grid-connected two kinds of operational modes of micro-capacitance sensor independent sum and the quality of power supply and two kinds of operational modes;
Photovoltaic DC-to-AC converter controller, comprise MPPT controller and SVPWM controller, for controlling booster circuit and inverter circuit respectively, MPPT controller receives DC voltage and the current signal of the photovoltaic system of RT-LAB analogue system, booster circuit control signal is exported after modulation, SVPWM controller receives grid-connected point voltage, exports the SVPWM pulse control signal of inverter circuit after modulation.
4. the micro-capacitance sensor emulation test system based on RT-LAB according to claim 3, is characterized in that, described DSP physical system test is two-stage test, comprising:
Hardware-in―the-loop test, forms hardware-in―the-loop test system by RT-LAB analogue system and DSP physical system, for carrying out photovoltaic DC-to-AC converter and two way convertor development and testing; Wherein, two way convertor controller receives the electrical network of RT-LAB analogue system and battery tension current signal and power control signal, after modulation, export SVPWM pulse control signal, the two way convertor main circuit switch device of control RT-LAB analogue system; MPPT controller in photovoltaic DC-to-AC converter controller receives DC voltage and the current signal of the photovoltaic system of RT-LAB analogue system, booster circuit control signal is exported after modulation, SVPWM inverter controller receives grid-connected point voltage, after modulation, export the inverter circuit of SVPWM pulse control signal to RT-LAB analogue system;
Power hardware is in ring test; power hardware is formed in ring test system by RT-LAB analogue system, DSP physical system, micro-capacitance sensor physical simulation system and micro-capacitance sensor supervisory system; for the development and testing before full physical equipment debugging; development and testing before described full physical equipment debugging is test the performance of two way convertor when micro-capacitance sensor normally runs and the Preservation tactics under malfunction, and it comprises the following steps:
Carry out single two way convertor test, power distribution network, accumulator and single two way convertor main circuit model is built in RT-LAB analogue system, the energy storage device of removing micro-capacitance sensor physical simulation system and two way convertor thereof, DSP physical system receives electrical network and the battery tension current signal of RT-LAB analogue system, receive the power control signal of micro-capacitance sensor supervisory system, SVPWM pulse control signal is exported, the control main circuit switch device of control RT-LAB analogue system after modulation; Under micro-capacitance sensor switches three kinds of different operational modes from net, grid-connected and pattern, the checking of power hardware assemblage on-orbit and debugging are further carried out to the DSP physical system of debugging through hardware in loop, makes the output waveform of two way convertor reach expection requirement;
Carry out multiple two way convertor parallel running test, accumulator, multiple two way convertor main circuit model is built in RT-LAB analogue system, adopt the control method of master & slave control, equity control, to carrying out many two way convertors parallel running debugging from net type micro-capacitance sensor, solve the issuable circulation problem of many two way convertors parallel running;
To carrying out many two way convertors parallel running test from net type micro-capacitance sensor, now by energy storage device and two way convertor access micro-capacitance sensor physical simulation system thereof, the primary circuit of energy storage device and two way convertor in micro-capacitance sensor is built at emulating host computer, when from network operation, carry out two way convertor physical model and the parallel running of digital simulation model many two way convertors is tested.
5. the micro-capacitance sensor emulation test system based on RT-LAB according to claim 2, it is characterized in that, described power amplifier generates and absorbs single-phase and three phase power, for connecting RT-LAB analogue system and micro-capacitance sensor physical simulation system, ensure that real-time target machine works in the environment of low-voltage, electric current.
6. the micro-capacitance sensor emulation test system based on RT-LAB according to claim 2, is characterized in that, described micro-capacitance sensor supervisory system comprises:
Monitoring host computer, for telemonitoring and control micro-capacitance sensor;
Data acquisition control device, for gathering the parameter of micro-capacitance sensor actual motion and making corresponding actions according to control signal;
Fieldbus/Industrial Ethernet network, connection data acquisition control device and monitoring host computer, linked by input/output board and connect monitoring host computer and RT-LAB analogue system.
7. the micro-capacitance sensor emulation test system based on RT-LAB according to claim 2, it is characterized in that, micro-capacitance sensor supervisory system is used for monitoring the system voltage of micro-capacitance sensor physical simulation system, DSP physical system and RT-LAB analogue system, frequency, power and each element operating mode simultaneously, by power distribution network/micro-capacitance sensor digital simulation model and actual micro-grid system associative simulation, with this, power hardware is carried out in ring test to micro-capacitance sensor three layers of control system.
8. the micro-capacitance sensor emulation test system based on RT-LAB according to claim 7, it is characterized in that, described micro-capacitance sensor three layers of control system comprise: (1) field apparatus key-course, by adopting power limitation control mode, constant voltage/constant frequency control mode, droop control mode and equity to control and master-slave control method, realize the stability contorting of system; (2) micro-capacitance sensor central control layer, the power division realized in micro-capacitance sensor controls, electric voltage frequency secondary adjusts and pattern switches; (3) grid key-course, realizes the power flowcontrol between the energy hole in micro-capacitance sensor, micro-capacitance sensor group and the power flowcontrol between micro-capacitance sensor and electric system.
9. the micro-capacitance sensor emulation test system based on RT-LAB according to claim 8, is characterized in that, the three layers of control system's development test of described micro-capacitance sensor are two-stage test, comprising:
Hardware-in―the-loop test, the hardware-in―the-loop test system of testing for Preliminary Exploitation be made up of RT-LAB analogue system and micro-capacitance sensor supervisory system, first Digital Simulation is carried out to three layers of control strategy, micro-capacitance sensor, power distribution network and Control System Digital Imitation model is built, the validity of access control system in the aspect of Digital Simulation in emulating host computer; Then the control strategy drawn according to Digital Simulation builds physics micro-capacitance sensor supervisory system, carries out hardware-in―the-loop test, the validity of the control strategy that checking Research of digital simulation draws;
Power hardware is in ring test, by RT-LAB analogue system, micro-capacitance sensor supervisory system and micro-capacitance sensor physical simulation system composition test macro, for the development and testing before full physical equipment debugging, the Power Exchange path of emulating host computer and micro-capacitance sensor physical simulation system is set up by interface arrangement and power amplifier, test process is as follows: build power distribution network or micro-capacitance sensor digital simulation model according to simulation objectives at emulating host computer, micro-capacitance sensor supervisory system can be monitored power distribution network or micro-capacitance sensor digital simulation model and actual micro-grid system simultaneously, by power distribution network or micro-capacitance sensor digital simulation model and actual micro-grid system associative simulation, to verify the validity of three layers of control system and the adaptability in micro-capacitance sensor group cooperation control and distribution network failure and scheduling controlling thereof further.
10. the micro-capacitance sensor emulation test system based on RT-LAB according to claim 1, it is characterized in that, described micro-capacitance sensor physical simulation system comprises photovoltaic electrification component, wind power generating set, energy storage battery, diesel-driven generator, controllable burden, photovoltaic DC-to-AC converter, two way convertor and cable line, and composition exchanges micro-capacitance sensor; Described micro-capacitance sensor physical simulation system accepts monitoring and the scheduling controlling of micro-capacitance sensor supervisory system and RT-LAB analogue system.
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